How far is Smithtown, NY from Bayville, NY?
The driving distance from Smithtown, NY to Bayville, NY is about 26 miles (41.8 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 19.3 miles (31 km).
- For a round trip, plan for roughly 01h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 42m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census-designated place in Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Smithtown and Bayville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithtown and Bayville.
-
1
Start on West Main Street
2964 ft · 52 sec · West Main Street
-
2
Keep slight right to continue on Saint Johnland Road
1.9 mi · 3 min · Saint Johnland Road
-
3
Turn left onto East Main Street
1.5 mi · 2 min · East Main Street
-
4
Continue on State Highway 25A
569 ft · 10 sec · State Highway 25A
-
5
Continue on East Main Street
1.5 km · 1 min · East Main Street
-
6
Continue on Fort Salonga Road
5.1 mi · 8 min · Fort Salonga Road
-
7
Continue on Fort Salonga Road
1.8 mi · 3 min · Fort Salonga Road
-
8
Continue on East Main Street
3.8 mi · 7 min · East Main Street
-
9
Keep slight left to continue on Main Street
81 m · 7 sec · Main Street
-
10
Continue on Lawrence Hill Road
1.4 km · 2 min · Lawrence Hill Road
-
11
Continue on Lawrence Hill Road
1.4 km · 2 min · Lawrence Hill Road
-
12
At the end of the road, turn left onto Northern Boulevard
1.6 mi · 3 min · Northern Boulevard
-
13
Turn right onto Cove Road
2 mi · 3 min · Cove Road
-
14
Continue on East Main Street
1.1 mi · 2 min · East Main Street
-
15
Turn left onto South Street
62 m · 6 sec · South Street
-
16
Turn right onto West Main Street
3131 ft · 58 sec · West Main Street
-
17
Continue on West Shore Road
2 mi · 3 min · West Shore Road
-
18
Continue on Bayville Bridge
537 ft · 9 sec · Bayville Bridge
-
19
Continue on Ludlam Avenue
1388 ft · 29 sec · Ludlam Avenue
-
20
Turn left onto Bayville Avenue
1.1 km · 1 min · Bayville Avenue
-
21
Turn right onto Mountain Avenue
13 m · 2 sec · Mountain Avenue
-
22
Arrive at your destination
0 m · 1 sec · Mountain Avenue
Car Route Details
A richer read on the saved driving route between Smithtown and Bayville.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Fort Salonga Road
Continue on Fort Salonga Road
5.1 mi · 00h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Cloudy leaving Smithtown and Mostly Cloudy near Bayville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithtown to Bayville?
The road trip is about 26 miles (41.8 km) and usually takes 00h 42m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Greenlawn is a useful midpoint, sitting about 13 miles from Smithtown and 13 miles from Bayville.
How much longer is the road route than the straight-line distance?
The direct path is about 19.3 miles (31 km), while the road route adds roughly 6.7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:04 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.69 one way or $7.38 round trip. Estimated CO2 is about 8.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Smithtown and Mostly Cloudy near Bayville.
Stop Ideas Near Greenlawn
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Babylon Town Hall Annex
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Greenlawn.
Stamford Transportation Center
New Rochelle station
Bridgeport
Yonkers station
Flight Path Map
This map shows the direct air route between Smithtown and Bayville. Straight-line distance: 19.26 mi (30.99 km).
#1 Smithtown
Census-designated place in Suffolk County, New York
| Population | 110,876 |
| Coordinates | 40.8559300, -73.2006700 |
| Altitude | 18 |
| Country | United States |
#2 Bayville
Village in Nassau County, New York, United States
| Population | 6,695 |
| Coordinates | 40.9106500, -73.5620700 |
| Altitude | 12 |
| Country | United States |
End: Bayville (-73.56207, 40.91065)
Estimated Travel Time
Distance: 42 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 51m |
| 40 mph (64.37 km/h) | 00h 38m |
| 50 mph (80.47 km/h) | 00h 31m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $3.69 | $7.38 |
| Mid-grade | $4.48 | $4.12 | $8.25 |
| Premium | $4.86 | $4.47 | $8.94 |
| Diesel | $4.69 | $4.32 | $8.64 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in New York · Apr 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.